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9 Cards in this Set
- Front
- Back
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chemical equilibrium
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the condition in which the concentrations of all reactants and products in a closed system cease to change with time
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haber process
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the catalyst system and conditions of temperature and pressure developed by Fritz Haber and coworkers for the formation of NH3 form H2 and N2.
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Law of Mass Action
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the rules by which the equilibrium constant is expressed in terms of the concentrations of reactants and products, in accordance with the balanced chemical equation for the reaction
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equilibrium constant expression
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the expression that describes the relationship among the concentrations (or partial pressures) of the substances present in a system at equilibrium
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equilibrium constant
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Kc the numberical value of the equilibrium constant expression for a system at equilibrium
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homogeneous equilibria
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the equilibrium established between reactant and product substances that are all in the same phase
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heterogeneous equilibria
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the equilibrium established between substances in two or more different phases, for example, a gas and solid
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reaction quotient
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Q the value that is obtained when concentrations of reactants and products are inserted into the equilibrium expression
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Le Chatelier's Principle
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states that if a system at equilibrium is disturbed by a change in temperature, pressure, or the concentration of one of the components, the system will shift its equilibrium position so as to counteract the effect of the disturbance
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